(v. t.) To seize and hold by clasping or embracing with the fingers or arms; to catch to take possession of.
(v. t.) To lay hold of with the mind; to become thoroughly acquainted or conversant with; to comprehend.
(v. i.) To effect a grasp; to make the motion of grasping; to clutch; to struggle; to strive.
(n.) A gripe or seizure of the hand; a seizure by embrace, or infolding in the arms.
(n.) Reach of the arms; hence, the power of seizing and holding; as, it was beyond his grasp.
(n.) Forcible possession; hold.
(n.) Wide-reaching power of intellect to comprehend subjects and hold them under survey.
(n.) The handle of a sword or of an oar.
Example Sentences:
(1) A tendency of reduced forepaw grasping ability was seen in lead-treated rats during the end of the lead exposure.
(2) In the 18 month-old a more mature grasp and forearm combination, mainly palmar grasp with or without stablizing index finger + overpronated forearm, was found.
(3) And they have no intention of letting it out of their grasp.
(4) At the end of each session, he is forced to don a pair of blackened goggles, ear muffs are placed over his head, and he is ordered to place the palms of his hands together so that a guard can grasp his thumbs to lead him away.
(5) Results indicate substantial postoperative improvement in tip prehension and grasp, while performance remained essentially unchanged for lateral prehension, pinch force, and power grip.
(6) Lateral bias was measured for 4 behaviors: hand-to-mouth, hand-to-hand, defensive grasp, and first step.
(7) The pressure sore resulted from the commonly practised habit of grasping the upright of the wheel chair with the upper arm in order to gain stability.
(8) Britain is still sending regular reinforcements across the Atlantic, from the new Spider-Man signing ( Tom Holland from Surrey ), to the actors who have recently snatched real-life national archetypes like Abraham Lincoln ( Daniel Day-Lewis ), Ernest Hemingway (Clive Owen) and Martin Luther King (David Oyelowo ) from the grasp of American stars.
(9) There is a developmental sequence of pencil grasp, and useful development scales in copying cube models, drawing geometric shapes, and the draw-a-man test.
(10) Basilar dendrites show significantly larger numbers (p less than .05) of branching for motor I cortex under condition 3 associated with the greatest skills and amount of activity in climbing, swinging, and grasping of objects.
(11) "Although she was always a steadfast critic of apartheid, she had a much better grasp of the complexities and geostrategic realities of South Africa than many of her contemporaries," he said.
(12) What that mindset signally failed to grasp is that there is something called computer science – a discipline with fundamental concepts and principles, just like other sciences .
(13) Reading the extraordinary details in Michael Beloff’s independent ethics commission report and the second part of Dick Pound’s independent commission report, published on Thursday , it is becoming increasingly clear Diack and his two sons, plus his legal counsel Habib Cissé, were running an audacious shadow operation that grasped opportunity where ever it came.
(14) certain forms of the passive voice; the flexibility in changing between the parts of speech) made the verbal grasp of unconscious and preconscious phenomena easier for Freud, i.e.
(15) In the context of a deficit recovered against a team on the fringe of the Champions League places, and grasping for positives, it did at least offer flashes of the character the home support deemed to have been so absent of late.
(16) Ibotenate lesioned rats, despite having larger lesions than the quinolinate, showed no deficits in eating or drinking in the home cage, or reaching or grasping disabilities in the staircase test.
(17) If the party’s senior members cannot grasp this simple fact, then perhaps they ought to replace the word “Labour” in the party’s name – or cross the floor and join the Conservatives?
(18) To grasp the challenge of 2050, our report shows that public and private investments will need to be better focused towards a low carbon and circular economy.
(19) And many young people, including in the UK, do grasp the advantages.
(20) | Paul Mason Read more Donald Trump, for his part, couldn’t quite grasp the scale of Obama’s plan: “Our president wants to take in 250,000 from Syria.
Trichocyst
Definition:
(n.) A lasso cell.
Example Sentences:
(1) We had previously shown that a phosphoprotein of 63 kDa ('PP63') is rapidly and selectively dephosphorylated during synchronous (less than or equal to 1 s) trichocyst exocytosis in Paramecium cells and then rephosphorylated within less than or equal to 1 min [Zieseniss & Plattner (1985) J.
(2) Therefore, in comparison with the reported cytosolic pH (6.8), trichocysts cannot be considered as essentially acidic compartments.
(3) Distinctive features include a complex cytoskeleton which defines the cell organization and interconnects cell components; trichocysts which resemble those in other cryptoprotists; and two non-photosynthetic plastids.
(4) Crosses between members of two independent collections of Paramecium tetraurelia mutants blocked in the final membrane fusion step of trichocyst release (nd mutants) allowed us to define 13 complementation groups comprising 23 alleles.
(5) Trichocysts from mutants defective to varying degrees in trichocyst formation were subjected to similar experimental protocols.
(6) When paramecia were treated only with Ca++ and then fixed with OsO4 plus oxalate or merely with glutardialdehyde, electron scattering deposits were formed also on the inner side of the cell membrane and within the ciliary shaft (but rarely in trichocysts).
(7) Morphological evidence that supports this grouping is the layer of sacs underneath the plasma membrane in all three taxa and the identical structure of trichocysts in the apicomplexan Spiromonas and dinoflagellates.
(8) From this comparison between wild type and mutants, we conclude: (a) that the formation of parentheses is a primary differentiation of the plasma membrane, independent of the presence of trichocysts, while the secondary transformation of parentheses into circular arrays and the formation of the rosette are triggered by interaction between trichocysts and plasma membranes; and (b) that the formation of the rosette is a prerequisite for trichocyst exocytosis.
(9) The mAbs were cross-reactive with the trichocysts of P. primaurelia, P. tetraurelia, P. caudatum and P. calkinsi with some small variation in blotting patterns.
(10) The ciliate protozoan Paramecium tetraurelia produces secretory granules (trichocysts) which release needle-like structures composed of small, acidic proteins.
(11) Characteristic arrangements of membrane-intercalated particles (MIPs) occur over trichocyst docking sites: 300 nm large double rings of MIPs and a MIP rosette in the middle.
(12) Element analysis by energy dispersive x-ray microanalysis ascertained the presence of Ca and P in deposits occurring in trichocysts.
(13) Four mAbs (131C1E8, A1-3, A16-2, D7) were directed to a trio of bands of 37, 34 and 29 (x 10(3] Mr from the beaded or meshlike trichocyst body sheath.
(14) A polyclonal antibody directed against the luciferase of the luminous dinoflagellate Gonyaulax polyedra labels both dense vesicles and trichocyst sheaths, as visualized in the electron microscope after treatment of antibody-reacted sections with an immunogold probe.
(15) On the plasma membrane of Paramecium circular arrays of particles mark the sites of attachment of the tips of the intracellular secretory organelles-trichocysts.
(16) Upon release the trichocyst membrane fuses with the cell membrane and the trichocyst content undergoes a Ca2+-dependent irreversible expansion.
(17) The number of non-docked, free trichocysts in the cytoplasm is only slightly changed, indicating a continuous synthesis and docking rate (approximately 2-3 organelles per min).
(18) This mutant was chosen because it is the best known of its class to date and seems to be altered in assembly of the material connecting the trichocyst membrane to the plasma membrane and in assembly of the "rosette," a complex array of intramembranous particles in the plasma membrane at the trichocyst insertion sites.
(19) Those "resting" trichocysts which were devoid of deposits did not contain Ca or P enriched.
(20) The resulting needle-like extended trichocyst matrix (xtmx), also paracrystalline, is released outside the cell.